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US Army
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Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,053,432

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Summary for Patent: 5,053,432

Title: Naphthoquinone derivatives
Abstract:Novel antiprotozoal naphthoquinones having the general formula ##STR1## (wherein either R.sup.1 is hydrogen and R.sup.2 is selected from C.sub.1-6 alkoxy, aralkoxy, C.sub.1-6 alkyl-C.sub.1-6 alkoxy, phenyl substituted by one or two groups selected from halogen and C.sub.1-6 alkyl, halogen and perhalo-C.sub.1-6 alkyl; or R.sup.1 and R.sup.2 are both C.sub.1-6 alkyl or phenyl; and n is 0 or 1) and salt thereof. The compounds of formula (I) are useful for the treatment or prophylaxis of protozoal diseases including malaria, theileriosis and coccidiosis. Various processes for preparing compounds of formula (I) are described.
Inventor(s): Hudson; Alan T. (Sevenoaks, GB), Randall; Anthony W. (Hayes, GB)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:07/456,052
Patent Claim Types:
see list of patent claims
Compound; Use; Dosage form; Composition;

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Foreign Priority and PCT Information for Patent: 5,053,432

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8310141Apr 14, 1983

International Patent Family for Patent: 5,053,432

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria27696► Subscribe
Australia2679684► Subscribe
Australia574353► Subscribe
Cyprus1549► Subscribe
Germany19475021► Subscribe
Germany3464132► Subscribe
Denmark172273► Subscribe
Denmark193584► Subscribe
European Patent Office0123238► SubscribeSPC/GB95/004United Kingdom► Subscribe
European Patent Office0123238► Subscribe95C0009Belgium► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

US Department of Justice
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